that would give consumers, broaden the consumer base. >> ifill: professor roderick harrison and tim noah from slate magazine, thank you both very much. >> thank you. >> thank you. >> brown: now, how much do americans really know about religion? judy woodruff gets some answers. >> woodruff: there's no doubt that faith and religion play a large role in american life. but a new survey out today shows that americans' basic knowledge about their religion and others is somewhat lacking. the pew forum on religion and public life posed 32 questions to more than 3,400 americans. some were very basic: who was moses? where was jesus born? others required a deeper understanding, such as the name of the figure who inspired the protestant reformation. the results were surprising: people got roughly half the answers wrong. atheists and agnostics scored best. jews and mormons scored highly as well. we discuss these findings now with the pew center's alan cooperman, who did the survey. thanks for being here. >> great to be here. >> woodruff: let's start with what people do know. tell us what some of the